文章目录
- 一、Android SDK开发示例工程
- 二、Android SDK的开发
- 三、打包aar包
- 四、Android SDK的使用
一、Android SDK开发示例工程
本教程工程Git链接:https://gitcode.com/xiaohuihui1400/AndroidSdkExample/overview
二、Android SDK的开发
新建项目,如果选择 Empty Activity 的话语言默认是 Kotlin,此处选择 No Activity
:
本教程使用 Java 语言
,构建配置语言为 Groovy
,可自行决定:
等待项目编译完成,在新的项目中创建Module:
选择 Android Library
:
根据自己的需求编写SDK,此处新建 Empty Views Activity
:
命名为 OneActivity
:
再新建一个 Empty Views Activity
命名为 TwoActivity
:
做一个简单的打开页面功能,OneActivity 中点击按钮打开 TwoActivity 页面:
- activity_one.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/main"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".OneActivity"><Buttonandroid:id="@+id/button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="40dp"android:text="跳转TwoActivity"app:layout_constraintLeft_toLeftOf="parent"app:layout_constraintRight_toRightOf="parent"app:layout_constraintTop_toTopOf="parent" /><TextViewandroid:id="@+id/textView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="20dp"android:padding="15dp"android:text="这里是SDK的OneActivity"android:textSize="16sp"app:layout_constraintLeft_toLeftOf="parent"app:layout_constraintRight_toRightOf="parent"app:layout_constraintTop_toBottomOf="@id/button" /></androidx.constraintlayout.widget.ConstraintLayout>
- activity_two.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/main"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".TwoActivity"><TextViewandroid:id="@+id/textView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="40dp"android:padding="15dp"android:textSize="16sp"android:text="这里是SDK的TwoActivity"app:layout_constraintLeft_toLeftOf="parent"app:layout_constraintRight_toRightOf="parent"app:layout_constraintTop_toTopOf="parent" /></androidx.constraintlayout.widget.ConstraintLayout>
- OneActivity.java
package com.example.mylibrary;import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;public class OneActivity extends AppCompatActivity implements View.OnClickListener{private Button mButton;private TextView mTextView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);EdgeToEdge.enable(this);setContentView(R.layout.activity_one);ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);return insets;});initView();}private void initView() {mButton = findViewById(R.id.button);mButton.setOnClickListener(this);mTextView = findViewById(R.id.textView);mTextView.setOnClickListener(this);}@Overridepublic void onClick(View view) {int id = view.getId();if (id == R.id.button) {startActivity(new Intent(this, TwoActivity.class));} else if (id == R.id.textView) {Toast.makeText(this, mTextView.getText(), Toast.LENGTH_SHORT).show();}}}
- TwoActivity.java
package com.example.mylibrary;import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;public class TwoActivity extends AppCompatActivity implements View.OnClickListener {private TextView mTextView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);EdgeToEdge.enable(this);setContentView(R.layout.activity_two);ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);return insets;});initView();}public void initView() {mTextView = findViewById(R.id.textView);mTextView.setOnClickListener(this);}@Overridepublic void onClick(View view) {int id = view.getId();if (id == R.id.textView) {Toast.makeText(this, mTextView.getText(), Toast.LENGTH_SHORT).show();}}}
如果不想打包,可以在app\build.gradle
直接引入模块:
dependencies {implementation project(':mylibrary')
}
如下图所示:
三、打包aar包
执行 Gradle 任务,将 mylibrary 模块打包成aar:
gradle :mylibrary:assembleRelease
aar 包可以在mylibrary\build\outputs\aar
中找到:
当然也可以通过 Rebuild Project
来生成 aar 包:
需要跳过test的方法,使用以下的命令:
gradle build -x test
四、Android SDK的使用
将 aar 包复制或者移动到 app\libs
目录下:
在app\build.gradle
引入 libs 目录下的所有 jar、aar 包:
dependencies {implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
}
如下图所示:
在项目中新建一个 Empty Views Activity
进行SDK的测试:
命名为 MainActivity
,并勾选为启动 Activity :
- activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:id="@+id/main"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><Buttonandroid:id="@+id/button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="40dp"android:text="跳转SDK"app:layout_constraintLeft_toLeftOf="parent"app:layout_constraintRight_toRightOf="parent"app:layout_constraintTop_toTopOf="parent" /><TextViewandroid:id="@+id/textView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="20dp"android:padding="15dp"android:text="这里是MainActivity"android:textSize="16sp"app:layout_constraintLeft_toLeftOf="parent"app:layout_constraintRight_toRightOf="parent"app:layout_constraintTop_toBottomOf="@id/button" /></androidx.constraintlayout.widget.ConstraintLayout>
- MainActivity.java
package com.example.myapplication;import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;import com.example.mylibrary.OneActivity;public class MainActivity extends AppCompatActivity implements View.OnClickListener {private Button mButton;private TextView mTextView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);EdgeToEdge.enable(this);setContentView(R.layout.activity_main);ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);return insets;});initView();}private void initView() {mButton = findViewById(R.id.button);mButton.setOnClickListener(this);mTextView = findViewById(R.id.textView);mTextView.setOnClickListener(this);}@Overridepublic void onClick(View view) {int id = view.getId();if (id == R.id.button) {startActivity(new Intent(this, OneActivity.class));} else if (id == com.example.mylibrary.R.id.textView) {Toast.makeText(this, mTextView.getText(), Toast.LENGTH_SHORT).show();}}
}
MainActivity 中存在一个按钮,点击跳转SDK中的 OneActivity 页面,效果如下:
至此,我们完成了 Android SDK 的制作和使用。